Well, looking at all of these stories makes me confirm my thoughts: I'm really unlucky with shinies...
I've played Pokemon ever since good old Pokemon Red and, outside of Red Gyarados, I found a grand total of one shiny Poke. It was in Emerald. I had just defeated the E4 and for the first time I thought I'd try to complete the Pokedex so I checked and the first Poke I needed to caught was a Skitty. I headed to Rustboro and went north to find it. While looking for it, a Whismur appeared. I immediatly realized it wasn't a regular Whismur and caught it. I forgot about Skitty and went to the PC to confirm it was shiny. Then I trained it all the way to Exploud, using my best TMs on it (I never used any TMs before BW because I thought one day I might need them for better Pokes). Shiny Exploud was then always on my team in Pokemon Emerald.
I've caught a ton of shinies after that thanks to Pokeradar because, you know, if I were to trust luck to get another shiny I'd still have to wait a few more years for it. But it's obviously not the same feeling. Pokeradar shinies are expected, random shinies are the best surprise.